The researcher said that before the body begins to freeze, cold can cause changes in brain chemistry which lead to hallucinations.
VOA: special.2010.02.24
For example, in two thousand seven, doctors in the Washington area said a boy died when a tooth infection spread to his brain.
VOA: special.2009.03.11
The psychologist Woodburn Heron wrote about this subject in his nineteen fifty-seven work The Pathology of Boredom. He said that the brain depends on having continuing information from the bodys senses.
VOA: special.2010.02.24
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